The AMC3330-Q1 is a precision, isolated amplifier with a fully integrated, isolated DC/DC converter that allows single-supply operation from the low-side of the device. The reinforced capacitive isolation barrier is certified according to VDE V 0884-11 and UL1577 and separates sections of the system that operate on different common-mode voltage levels and protects low-voltage domains from damage.
The input of the AMC3330-Q1 is optimized for direct connection to high-impedance, voltage-signal sources such as a resistor-divider network to sense high-voltage signals. The integrated isolated DC/DC converter allows measurement of non-ground-referenced signals and makes the device a unique solution for noisy, space-constrained applications.
The excellent performance of the device supports accurate voltage monitoring and control. The integrated DC/DC converter fault-detection and diagnostic output pin of the AMC3330-Q1 simplify system-level design and diagnostics.
The AMC3330-Q1 is specified over the temperature range of –40°C to +125°C.
AEC-Q100 qualified for automotive applications:
Temperature grade 1: –40°C to 125°C, TA
3.3-V or 5-V single supply operation with integrated DC/DC converter
±1-V input voltage range optimized for voltage measurements with high input impedance
Fixed gain: 2.0
Low DC errors:
Gain error: ±0.2% (max)
Gain drift: ±45 ppm/°C (max)
Offset error: ±0.3 mV (max)
Offset drift: ±4 µV/°C (max)
Nonlinearity: ±0.02% (max)
High CMTI: 85 kV/µs (min)
System-level diagnostic features
Safety-related certifications:
6000-VPK reinforced isolation per DIN VDE V 0884-11 (VDE V 0884-11): 2017-01
4250-VRMS isolation for 1 minute per UL1577
Meets CISPR-11 and CISPR-25 EMI standards
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